This week's lighthouse is on an island group, the Samsan Islands, south of South Korea. It was an important location, so the Brits established Port Hamilton on the island of Geomundo. This lighthouse is thus both the Port Hamilton lighthouse and the Geomundo Island lighthouse.
Here's where it is. Zoom much further out to see where South Korea is.
The Lighthouse Directory says:
"2006 (station established 1905). Active; focal plane about 95 m (312 ft); white flash every 15 s. 33 m (108 ft) hexagonal cylindrical concrete tower with lantern, gallery, and a large hexagonal observation deck. Fog siren (blast every 50 s). Entire lighthouse is white. ... This new lighthouse was completed in August 2006. It is clearly designed for public access, but we have no information on the schedule. Located adjacent to the historic lighthouse."
As you might have guessed, there's a historic lighthouse too. They are both in a very striking location, on a narrow ridge overlooking the ocean.
See what I mean below. The historic lighthouse is visible in the pictures, particularly the second and fourth pictures.